| 摘要 |
A hose break valve consists of a valve housing 1 with an inlet 4 and an outlet 5 as well as a flowthrough duct 6 which connects the inlet and the outlet and in which a valve cone 7 can be moved axially. That part of the valve cone 7 which faces towards the outlet 5 is designed with a seat surface 10 for interacting with a seat 9 arranged in the duct in the valve housing, which is usually situated at a distance from the seat surface 10 of the valve cone. A spring 13 tends to displace the valve cone 7 towards the inlet 4, as a result of which the seat surface of the valve cone and the valve seat of the housing are retained or wedged in the seat on displacement towards the outlet 5 after the valve has been actuated owing to a pressure drop in the hose. <IMAGE>
|
